JPS56162205A - Construction of blade row for axial flow hydraulic machine - Google Patents

Construction of blade row for axial flow hydraulic machine

Info

Publication number
JPS56162205A
JPS56162205A JP6652380A JP6652380A JPS56162205A JP S56162205 A JPS56162205 A JP S56162205A JP 6652380 A JP6652380 A JP 6652380A JP 6652380 A JP6652380 A JP 6652380A JP S56162205 A JPS56162205 A JP S56162205A
Authority
JP
Japan
Prior art keywords
flow
performance
boundary layer
construction
bucket cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6652380A
Other languages
Japanese (ja)
Inventor
Akira Arikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6652380A priority Critical patent/JPS56162205A/en
Publication of JPS56162205A publication Critical patent/JPS56162205A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent a secondary flow and improve the performance thereof by a method wherein a protruded wall is provided in the path of flow in a bucket cover fixing a plurality lof moving blades.
CONSTITUTION: A circulating flow path is constituted with the moving blades 1, 2 and the bucket cover 3. The protruded wall 9 is provided at the flow path side of the bucket cover 3. The flow of the fluid in a high-pressure boundary layer 4b, generated at the front side surface 2b of the blade 2, flows through a boundary layer 4c and is intercepted by the protruding wall 9. Thereby, a corner eddy current generated in a low-pressure boundary layer on a back side surface 1a is prevented and thereby preventing the reduction of the performance of the blade due to the loss of the secondary flow. According to such a method above described, the improvement of the performance may be realized.
COPYRIGHT: (C)1981,JPO&Japio
JP6652380A 1980-05-21 1980-05-21 Construction of blade row for axial flow hydraulic machine Pending JPS56162205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6652380A JPS56162205A (en) 1980-05-21 1980-05-21 Construction of blade row for axial flow hydraulic machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6652380A JPS56162205A (en) 1980-05-21 1980-05-21 Construction of blade row for axial flow hydraulic machine

Publications (1)

Publication Number Publication Date
JPS56162205A true JPS56162205A (en) 1981-12-14

Family

ID=13318310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6652380A Pending JPS56162205A (en) 1980-05-21 1980-05-21 Construction of blade row for axial flow hydraulic machine

Country Status (1)

Country Link
JP (1) JPS56162205A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002301129A (en) * 2001-04-06 2002-10-15 Seiko Giken Kk Bathing care auxiliary
JP2009250217A (en) * 2008-04-11 2009-10-29 Hitachi Ltd Turbine rotor blade
JP2014163367A (en) * 2013-02-28 2014-09-08 Hitachi Ltd Rotor blade row of axial-flow turbine, and axial-flow turbine
FR3063118A1 (en) * 2017-02-21 2018-08-24 Safran Aircraft Engines TURBOMACHINE PIECE ASSEMBLY WITH AN INTEGRATED PLATFORM VANE AND CORRESPONDING TURBOMACHINE
WO2019220042A1 (en) * 2018-05-17 2019-11-21 Safran Aircraft Engines Turbomachine stator element

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002301129A (en) * 2001-04-06 2002-10-15 Seiko Giken Kk Bathing care auxiliary
JP2009250217A (en) * 2008-04-11 2009-10-29 Hitachi Ltd Turbine rotor blade
JP2014163367A (en) * 2013-02-28 2014-09-08 Hitachi Ltd Rotor blade row of axial-flow turbine, and axial-flow turbine
FR3063118A1 (en) * 2017-02-21 2018-08-24 Safran Aircraft Engines TURBOMACHINE PIECE ASSEMBLY WITH AN INTEGRATED PLATFORM VANE AND CORRESPONDING TURBOMACHINE
WO2019220042A1 (en) * 2018-05-17 2019-11-21 Safran Aircraft Engines Turbomachine stator element
FR3081185A1 (en) * 2018-05-17 2019-11-22 Safran Aircraft Engines STATOR ELEMENT OF TURBOMACHINE
US11236627B2 (en) 2018-05-17 2022-02-01 Safran Aircraft Engines Turbomachine stator element

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